Cashew kernels are packed with nutrients. A 100-gram serving provides 553 calories, 30.19g carbohydrates, 43.85g fat (with 23.797g monounsaturated fat), and 18.22g protein. They are also a rich source of essential minerals like copper, magnesium, phosphorus, and zinc, as well as vitamins such as thiamine, vitamin B6, and vitamin K.